Citation: WANG Wenjun, YU Zaizhang, LI Bogeng, PAN Zuren. SEED SEMICONTINUOUS EMULSION MULTI-COPOLYMERIZATION OF (METH) ACRYLATES WITH HIGH-SOLID CONTENT: EFFECT OF THE OPERATION CONDITIONS*[J]. Chinese Journal of Polymer Science, ;1995, 13(2): 162-172. shu

SEED SEMICONTINUOUS EMULSION MULTI-COPOLYMERIZATION OF (METH) ACRYLATES WITH HIGH-SOLID CONTENT: EFFECT OF THE OPERATION CONDITIONS*

Received Date: 10 January 1994

The seeded semicontinuous emulsion multi-copolymerization of butyl acrylate (BA),2-ethylhexyl acrylate (2EHA), methyl methacrylate (MMA), 2-hydroxyl propyl acrylate(HOPA) and acrylic acid (AA) was used to prepare the acrylic latexes with high-solidcontent. The effects of monomer emulsion feed rates (Ra) and (R/E)E values, the ratio ofemulsifier amount between the initial charge (R) and the addition monomer emulsion (E),on the polymerization reaction features, the viscosities, surface tensions,particle sizes distributions of latexes,T and the insoluble fractions of films,the 180° peel strength,tack and holding power of pressure-sensitive adhesive (PSA) tapes,prepared from the latexes,were studied.Experimental study shows that the grafting and crosslinking fraction in the PSA tapes must be controlled within a suitable range to keep the balance of the 180°peel strength,tack and holding power.
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